含十硝基联吡唑DNBP-10固体推进剂能量性能的对比研究

Energy performance comparison of solid propellants containing bipyrazole bearing ten nitro groups DNBP-10

采用NASA-CEA软件,在pc=70 atm、pe=1 atm、T0=298 K条件下,研究了十硝基联吡唑DNBP-10在含有HTPB和GAP的推进剂以及CMDB推进剂中的能量性能,并与ADN、AN、HMX和CL-20做了详细对比。结果表明,用适量DNBP-10取代AP后,推进剂的能量性能会显著增加。对于AP/HTPB/Al推进剂,加入20%DNBP-10后,比冲由原来的2602.8N·s/kg提高到2616.1 N·s/kg,且DNBP-10对推进剂能量性能的贡献明显高于HMX和CL-20。对于AP/GAP/Al推进剂,加入30%DNBP-10后,比冲由原来的2609.7 N·s/kg提高到2650.5 N·s/kg,但DNBP-10对推进剂能量的贡献略低于ADN、HMX和CL-20,远高于AN。对于CMDB推进剂,加入30%DNBP-10后,比冲由原来的2532.9 N·s/kg提高到2583.7N·s/kg,DNBP-10对推进剂能量性能的贡献明显低于HMX和CL-20,与ADN相近,仅高于AN。上述结果说明,在三种推进剂中,DNBP-10都可适当取代AP来提高能量性能,且DNBP-10更适用于HTPB推进剂,而不适用于CMDB推进剂。

By using NASA-CEA software,at condition of pc=70 atm,pe=1 atm,and T0=298 K,the energy performances of DNBP-10 in HTPB and gap propellants and CMDB propellants were studied and compared with ADN,AN,HMX and CL-20 in detail.The results show that the energy performance of propellants obviously increased with replacing AP by DNBP-10.For AP/HTPB/Al propellants,the specific impulse increased from 2602.8 N·s/kg to 2616.1 N·s/kg after adding 20%DNBP-10;meanwhile the contribution of DNBP-10 to energy performance is remarkably higher than that of HMX and CL-20.For AP/GAP/Al propellants,the specific impulse increased from 2609.7 N·s/kg to 2650.5 N·s/kg after adding 30%DNBP-10;meanwhile,the contribution of DNBP-10 to energy performance is somewhat lower than that of ADN,HMX and CL-20,and much higher than that of AN.For CMDB propellants,the specific impulse increased from 2532.9 N·s/kg to 2583.7 N·s/kg after adding 30%DNBP-10.However,the contribution of DNBP-10 to energy performance is distinctly lower than that of HMX and CL-20,similar to that of ADN and only higher than that of AN.The above results show that among the three propellants,DNBP-10 can replace AP properly to improve their energy performance,and DNBP-10 is more suitable to use in HTPB propellants and is unsuitable to use in CMDB propellants.